Microwave Sintering and Optical Properties of Sm3+-Activated KSrPO4 Phosphors

被引:11
|
作者
Wu, Chun-Sen [1 ]
Lin, Bor-Tsuen [1 ]
Jean, Ming-Der [2 ]
机构
[1] Natl Kaohsiung First Univ Sci & Technol, Inst Engn Sci & Technol, Kaohsiung, Taiwan
[2] Yung Ta Inst Technol Commerce, Dept Elect Engn, Pingtung, Taiwan
关键词
Phosphors; phosphate; microwave sintering; photoluminescence properties; LUMINESCENCE; TB3+; EU2+;
D O I
10.1007/s11664-013-2830-6
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The microwave sintering and photoluminescence properties of KSr1-x PO4:xSm(3+) phosphors have been investigated. KSrPO4 phosphates activated by various concentrations of Sm3+ ions (x = 0.007, 0.009, 0.01, 0.03) were microwave sintered at 1200A degrees C for 3 h under air atmosphere. x-Ray diffraction patterns showed that all phosphor samples exhibited a single phase without any extraneous phases. Scanning electron microscopy images showed that the particle size increased with the Sm3+ concentration and that the particle morphology was fine and uniform. The photoluminescence results showed that a concentration quenching effect occurred when the concentration of Sm3+ ions reached x = 0.01. Decay time measurement results showed that the lifetime decreased gradually from 3.12 ms to 2.34 ms as the Sm3+ concentration increased. All the chromaticity (x, y) values of the microwave-sintered KSrPO4:Sm3+ phosphors were located in the red region (0.57, 0.41).
引用
收藏
页码:465 / 469
页数:5
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